All I can say is tha if you use the#9,buy the 9,no 9/5. The return and I'm still waiting for the credit to purchase another pair.A serious problem buying online,and return the product.
In the Rocky(4C-SP529) you have to buy 9/5, if you use the 9.
5.11 buy 9 if you use 9.
Valsetz Boots (4C-FW258) buy 9/5,if you use 9.
Please provide this information when making purchases of some other model in boots.